Answer:
They will be able to exchange their used needles for new clean safe ones so that they aren’t using the needles of someone else who possibly has HIV
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Explanation:
(Ch. 27.4) Many people are allergic to substances in the environment, such as ragweed pollen, as well as foods, such as peanuts. Which of these statements BEST describes an allergic reaction to one of these substances? (1 point) A. The substance is similar or identical to human antigens, and so it triggers an immune system response. B. The substance invades the body and causes damage to tissues, which triggers an immune system response. C. The substance does not directly harm tissues and is not a pathogen, but nevertheless triggers an inflammatory response. D. The substance invades the body and triggers a response from the respiratory system or digestive system, but not the immune system.
Answer:
C. The substance does not directly harm tissues and is not a pathogen, but nevertheless triggers an inflammatory response.
Explanation:
When a person is allergic to a substance, his or her immune system recognizes a harmless substance, such as components in food, pollen, or dust, as a treat. As a consequence, it starts an immune response that leads to inflammation. The substance that starts the allergic reaction is called an allergen, and it is not a pathogen because it is not a real threat to the body since it does not infect cells. When the allergen enters the body, it binds to antibodies that are in contact with a special type of cell. These specific cells will release a substance known as histamine. Histamine will produce an inflammatory reaction affecting different tissues in our body. For example, it can make us sneeze, have a running nose, swelling parts of our body, have itchiness and redness, amongst others.
Please help
Will give Brain List
Answer:
Yes
Explanation:
because brainly is the best
Describe three functions of proteins.
Answer:
protein has many roles in your body it keeps repair and build your body it issues allows metabolic reaction to take place and co-ordinate body functions in addition to providing our body with a structure framework proteins also maintain proper phn fluid balance
Climates near the equator are __________ then climates further away.Immersive
The same temperature
Always more Tropical
Colder
Warmer
Answer:
colder i think
Explanation:
........
A student observed the image and claimed that the frog takes its food by sucking. Is the claim made by the student correct
Answer:
No; the frog is eating food as a whole, so its mode of feeding is swallowing
Si una adolescente a la que se llamará Laura mide 1.65 m y pesa 70 kg, calcula su IMC.
Answer:
BMI (IMC): 25.7Explanation:
Dado que el IMC de Laura es 25,7, tiene sobrepeso.
El sobrepeso puede aumentar el riesgo de ciertas afecciones de salud, incluidas las enfermedades cardiovasculares, la presión arterial alta y la diabetes tipo 2.
Homologies are used as evidence of common ancestry among groups. Homologies include anatomical, molecular, and developmental evidence.
Which of the following would be an example of a developmental homology?
O Similarities in the genetic makeup of organisms
Similarities in the structures of various adult organisms
a
Similarities in the stages through which embryos pass
Similarities in the sequence of amino acids in a protein found in various species
Explain the functions of a villi
Answer
Villi are small finger-like projections found inside the inner walls of the small intestine. They v increase the surface area for absorption of the digested food. Each villus has a network of thin and small blood vessels close to its surface. The surface of the villi absorbs the digested food materials
Explanation:
Why do most living thing not leave fossils behind
Answer:
Explanation:
I believe why most living things do not leave fossils behind is most likely because they are decomposed before the fossils are covered by grouts and a predator might've eat them. The fossils are created when a plant or animal dies in a liquid environment and is covered by dirt.
Explain Newton’s second law and with an example too
What type of transport is illustrated in the diagram and what type of molecule would be transported
using this process?
A. Passive transport; carbohydrates
B. Active transport; oxygen
C. Exocytosis; proteins
D. Facilitated diffusion; sugars
Which of the following questions would best differentiate between Taiga and Tundra?
A.
Is the biome located in the northern hemisphere?
B.
Does the biome have a cold climate?
C.
Does the biome consist of deciduous trees?
D.
Is the vegetation tall or low to the ground?
What would best difference between Taiga and Tundra is C.Does the biome consist of deciduous trees.
What is tundra and Taiga?Tundra ecosystems are ecosystem that doesn't posses trees which is found in the Arctic .
The taiga on the other hand isa forest of the cold, subarctic region.
Therefore, the difference between them is to check if there are trees especially deciduous trees.
Learn more about tundra at;
https://brainly.com/question/7640891
Living and nonliving parts of an environment together are referred to as a(n)______________.
Answer:
ecosystem
Explanation:
Select ALL of the reasons why plants are important
Answer:
Provide habitats which further provide bio diversity
Reduce the greenhouse effect by using up Carbon Dioxide
Provides oxygen due to respiration
Provides structural support to soil which prevent landslide
Beautify the area
Provides raw materials used for lumber ,paper ect
Some product foods making them primary producers
What are the complementary base pairs found in DNA?
O A. A-U
G-C
O B. C-T
A-G
O C. U-T
G-C
O D. C-G
A-T
Answer:A-G
Explanation:
18. Which of the following is a benefit of intensive farming?
A. A concentrated animal feeding operation is the smallest type of intensive farm.
B. Animals raised in intensive farms are healthier.
C. The food produced on intensive farms is cheaper than that on open ranges.
D. There are nearly one million types of intensive farms in the US.
Answer:
B
Explanation:
In intensive grazing, rangeland is divided into paddocks. A paddock is
a small field or enclosure. Animals can graze on each paddock for a
short time before being moved to a new area. This type of system
provides high-quality pasture for dairy cows and growing animals but
requires increased management to move the livestock.
Inertia best describes...
a. why objects at rest remain at rest
b. why objects moving at a constant velocity continue moving at a constant velocity
c. both A and B
Answer:
c a letter c
Explanation:
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Which sequence lists types of materials in order from most conductive to least conductive
Answer:
insulator, semiconductor, conductor and superconductor.
Explanation:
The sequence list of types of materials in order from least conductive to the most conductive is: insulator, semiconductor, conductor and superconductor. Conductors are materials where electric current can flow freely; whereas, in insulators, electric current cannot. Examples of conductors are metals and water.
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Answer:
In areas of Africa where malaria is prevalent the number of sickle cell cases remains consistent generation after generation. ---- support the hypothesis.
In Canada the incident of sickle cell anemia has been increasing in the population. ----- contradicts the hypothesis.
Explanation:
In areas of Africa where malaria is widespread the number of sickle cell cases remains consistent generation after generation while on the other hand, In Canada the incident of sickle cell anemia are lower in the population because of environmental condition is not good for increase in malarial disease. In Africa, the environment is suitable for the mosquitoes that causes malaria so there is high increase of sickle cell anemia in the population.
n
Which is a sign of healthy urine?
light color, no odor
dark color, no odor
light color, strong odor
dark color, strong odor
Answer:
a
Explanation:
How are lasers used to measure gravitational waves?
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Messages are carried from the eyes to the brain by
A. nerves
B. light
C. muscles
D. blood vessels
nerves option A is correct
Explanation:
Nerves are carried from the eyes to the brain.
The amount of life that can be supported in a particular ecosystem is limited by which of the following?
I. energy
II. water
III. minerals
IV. oxygen
A.
II and IV only
B.
I and II only
C.
I, II, III, and IV
D.
II, III, and IV only
In which of the following ways are bacteria similar to birds? (2 points)
i wanna know if this is correct?
Answer:
I believe your answer is correct
Explanation:
.
Los glúcidos más sencillos son los aminoácidos verdadero o falso
Answer: Falso
Explanation: es falso porque monosacáridos son los mas sencillos
O
by killing animals and disrupting food chains.
O
by causing wildfires when passing through
electrical systems.
O
by contaminating water systems with debris and
toxins.
O
by increasing temperatures in the waterways it
passes through.
Answer:
the last one, by increasing temperatures in the waterways it passes through.
Scientists predict that ocean acidity could double (increase 100%) by 2100. What are the effects of ocean acidification on ocean plant and animal life give (2 examples) and on humans (give 2 examples)?
Thank you!
Answer:
Reduce amount of carbonate and dissolve calcium carbonate.
Explanation:
Ocean acidification can negatively affect marine life, causing organisms' shells and skeletons made from calcium carbonate to dissolve. ... Animals that produce calcium carbonate structures have to spend extra energy either repairing their damaged shells or thickening them to survive.
Ocean acidification will affect humans too! It will affect the food we eat since most of our shellfish requires calcium carbonate to form or to fortify their shells. Many of the fish we eat are also dependent on shelled animals for their food source, so the entire food chain is in jeopardy
Answer:
hi
Explanation:
Select the correct answer.
Paul observes an amoeba engulfing food during a science laboratory class. Which part of its cell does the amoeba use to engulf the food?
A.
cell wall
B.
cytoplasm
C.
nucleus
D.
vacuole
E.
silicate skeleton
Answer:
I think its vacuoles
Explanation:
1.) What are some of the forms of evidence used to support the theory of Pangaea?
2.) Why aren't the planet's continents in the same formation as they may have once been during the time of Pangaea?
3.) Why is it important to study the theory of plate tectonics and continental drift?
Answer:
1) Alfred Wegener, in the first three decades of this century, and DuToit in the 1920s and 1930s gathered evidence that the continents had moved. They based their idea of continental drift on several lines of evidence: fit of the continents, paleoclimate indicators, truncated geologic features, and fossils.
Explanation:
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